From a11c5e20c2e25a5f7f32f1c11e4d4f47322ff3bb Mon Sep 17 00:00:00 2001
From: KIMURA Chikahiro <chi-kimura@xr.jp.nec.com>
Date: Mon, 7 Aug 2017 17:48:08 +0900
Subject: call PyObject_GC_UnTrack() in tp_dealloc()

see the following sites for details:

* https://bugs.python.org/issue31095
* https://github.com/python/cpython/pull/2974

Fixes #35.
---
 src/zope/security/_proxy.c                 | 1 +
 src/zope/security/_zope_security_checker.c | 1 +
 2 files changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/zope/security/_proxy.c b/src/zope/security/_proxy.c
index 5108065..04321d7 100644
--- a/src/zope/security/_proxy.c
+++ b/src/zope/security/_proxy.c
@@ -343,6 +343,7 @@ proxy_clear(SecurityProxy *self)
 static void
 proxy_dealloc(SecurityProxy *self)
 {
+  PyObject_GC_UnTrack((PyObject*)self);
   proxy_clear(self);
   SecurityProxyType.tp_base->tp_dealloc((PyObject*)self);
 }
diff --git a/src/zope/security/_zope_security_checker.c b/src/zope/security/_zope_security_checker.c
index e5a2528..82edbbf 100644
--- a/src/zope/security/_zope_security_checker.c
+++ b/src/zope/security/_zope_security_checker.c
@@ -368,6 +368,7 @@ Checker_clear(Checker *self)
 static void
 Checker_dealloc(Checker *self)
 {
+  PyObject_GC_UnTrack((PyObject*)self);
   Checker_clear(self);
   Py_TYPE(self)->tp_free((PyObject*)self);
 }
-- 
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